18655378

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 35212320

約数和(自身を除く): 16556942

約数列:

[1, 2, 7, 14, 19, 38, 43, 49, 86, 98, 133, 233, 266, 301, 466, 602, 817, 931, 1631, 1634, 1862, 2107, 3262, 4214, 4427, 5719, 8854, 10019, 11417, 11438, 20038, 22834, 30989, 40033, 61978, 70133, 80066, 140266, 190361, 216923, 380722, 433846, 490931, 981862, 1332527, 2665054, 9327689, 18655378]

約数ペア:

[(1, 18655378), (2, 9327689), (7, 2665054), (14, 1332527), (19, 981862), (38, 490931), (43, 433846), (49, 380722), (86, 216923), (98, 190361), (133, 140266), (233, 80066), (266, 70133), (301, 61978), (466, 40033), (602, 30989), (817, 22834), (931, 20038), (1631, 11438), (1634, 11417), (1862, 10019), (2107, 8854), (3262, 5719), (4214, 4427)]